How to call Android contacts list?
Asked Answered
S

13

133

I'm making an Android app, and need to call the phone's contact list. I need to call the contacts list function, pick a contact, then return to my app with the contact's name. Here's the code I got on the internet, but it doesnt work.

import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.Contacts.People;
import android.view.View;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;

public class Contacts extends ListActivity {

    private ListAdapter mAdapter;
    public TextView pbContact;
    public static String PBCONTACT;
    public static final int ACTIVITY_EDIT=1;
    private static final int ACTIVITY_CREATE=0;

    // Called when the activity is first created. 
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        Cursor C = getContentResolver().query(People.CONTENT_URI, null, null, null, null);
        startManagingCursor(C);

        String[] columns = new String[] {People.NAME};
        int[] names = new int[] {R.id.row_entry};

        mAdapter = new SimpleCursorAdapter(this, R.layout.mycontacts, C, columns, names);
        setListAdapter(mAdapter);
    } // end onCreate()
    // Called when contact is pressed
    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);

        Cursor C = (Cursor) mAdapter.getItem(position);
        PBCONTACT = C.getString(C.getColumnIndex(People.NAME));

        // RHS 05/06
        //pbContact = (TextView) findViewById(R.id.myContact);
        //pbContact.setText(new StringBuilder().append("b"));

        Intent i = new Intent(this, NoteEdit.class);
        startActivityForResult(i, ACTIVITY_CREATE);
    }
}
Starlike answered 15/5, 2009 at 2:39 Comment(3)
Could you fix the code section to include the first part of the code: import android.app.ListActivity...Youngman
1.6 & 2.2 Exampls of this: coderanch.com/t/512048/Android/Mobile/Contact-APIExtraversion
try android contact extractor. A small simple easy to use libraryCredent
B
251

I'm not 100% sure what your sample code is supposed to do, but the following snippet should help you 'call the contacts list function, pick a contact, then return to [your] app with the contact's name'.

There are three steps to this process.

1. Permissions

Add a permission to read contacts data to your application manifest.

<uses-permission android:name="android.permission.READ_CONTACTS"/>

2. Calling the Contact Picker

Within your Activity, create an Intent that asks the system to find an Activity that can perform a PICK action from the items in the Contacts URI.

Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);

Call startActivityForResult, passing in this Intent (and a request code integer, PICK_CONTACT in this example). This will cause Android to launch an Activity that's registered to support ACTION_PICK on the People.CONTENT_URI, then return to this Activity when the selection is made (or canceled).

startActivityForResult(intent, PICK_CONTACT);

3. Listening for the Result

Also in your Activity, override the onActivityResult method to listen for the return from the 'select a contact' Activity you launched in step 2. You should check that the returned request code matches the value you're expecting, and that the result code is RESULT_OK.

You can get the URI of the selected contact by calling getData() on the data Intent parameter. To get the name of the selected contact you need to use that URI to create a new query and extract the name from the returned cursor.

@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
  super.onActivityResult(reqCode, resultCode, data);

  switch (reqCode) {
    case (PICK_CONTACT) :
      if (resultCode == Activity.RESULT_OK) {
        Uri contactData = data.getData();
        Cursor c =  getContentResolver().query(contactData, null, null, null, null);
        if (c.moveToFirst()) {
          String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
          // TODO Whatever you want to do with the selected contact name.
        }
      }
      break;
  }
}

Full source code: tutorials-android.blogspot.com (how to call android contacts list).

Babar answered 15/5, 2009 at 9:59 Comment(11)
it appears that a lot of this code has been deprecated with the recent android APIs. Does someone have an updated version?Hercules
Q: If I want to kick off a subactivity upon picking a contact (so that we have a way to back up to the contact list again), would Intent.ACTION_PICK still work? I'm starting to think I have to roll my own cursor and use setListAdapter, like in the main question. Hmm ...Cruciferous
@Reto: I tried using your code to read contact name, but even without declaring "READ_CONTACT" permission, I am able to get the contact name; I know that's impossible, but after adding a contact via the emulator and running the code, the name was available; what could have gone wrong ?Meloniemelony
Nothing is wrong here... you don't need the READ contact permission as the user is in control here. The app itself doesn't internally read the contacts, but rather pops a contact list. Only when the user selects a contact (manual action) is the app capable of retrieving a limited set of that of data associated with that contact info.Sardonyx
I was able to let user pick a contact without READ permission on my 4.0+ Android phone but not on 1.6. Anybody know at what version did this functionality come about?Sheppard
I believe the ContactsContract class is new in API 5, which is 2.0. For a 1.6 device, you'd have to use the older Contacts class.Colquitt
@RetoMeier onActivityResult is called immediately, before I've picked a contact. #32645002 What have I done wrong?Fatalism
PICK_CONTACT is failing for me. How did you initialize it?Sanalda
@Sanalda Did you get anywhere with getting PICK_CONTACT to work? I'm having the same problem from a fragmentTypesetter
@James PICK_CONTACT is a string, so try this... String PICk_CONTACT= 100; or you can directly do that like.just put any number insted of PICK_CONTACT like this. startActivityForResult(intent, 100); //Sparge
what about the phone number?Despumate
H
67

I do it this way for Android 2.2 Froyo release: basically use eclipse to create a class like: public class SomePickContactName extends Activity

then insert this code. Remember to add the private class variables and CONSTANTS referenced in my version of the code:

protected void onCreate(Bundle savedInstanceState) 
{
  super.onCreate(savedInstanceState);       
  Intent intentContact = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI); 
  startActivityForResult(intentContact, PICK_CONTACT);
}//onCreate

public void onActivityResult(int requestCode, int resultCode, Intent intent) 
{

  if (requestCode == PICK_CONTACT)
  {         
    getContactInfo(intent);         
    // Your class variables now have the data, so do something with it. 
  }
}//onActivityResult

protected void getContactInfo(Intent intent)
{

   Cursor cursor =  managedQuery(intent.getData(), null, null, null, null);      
   while (cursor.moveToNext()) 
   {           
       String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
       name = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME)); 

       String hasPhone = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));

       if ( hasPhone.equalsIgnoreCase("1"))
           hasPhone = "true";
       else
           hasPhone = "false" ;

       if (Boolean.parseBoolean(hasPhone)) 
       {
        Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId,null, null);
        while (phones.moveToNext()) 
        {
          phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
        }
        phones.close();
       }

       // Find Email Addresses
       Cursor emails = getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI,null,ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = " + contactId,null, null);
       while (emails.moveToNext()) 
       {
        emailAddress = emails.getString(emails.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
       }
       emails.close();

    Cursor address = getContentResolver().query(
                ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_URI,
                null,
                ContactsContract.CommonDataKinds.StructuredPostal.CONTACT_ID + " = " + contactId,
                null, null);
    while (address.moveToNext()) 
    { 
      // These are all private class variables, don't forget to create them.
      poBox      = address.getString(address.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POBOX));
      street     = address.getString(address.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.STREET));
      city       = address.getString(address.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.CITY));
      state      = address.getString(address.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.REGION));
      postalCode = address.getString(address.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE));
      country    = address.getString(address.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY));
      type       = address.getString(address.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.TYPE));
    }  //address.moveToNext()   
  }  //while (cursor.moveToNext())        
   cursor.close();
}//getContactInfo
Hemingway answered 11/11, 2010 at 13:12 Comment(1)
app crashes, when tried to get e mail second time. Edit: if someone else getting same error, just delete "cursor.close();" #9697368Bischoff
N
14

Looking around for an API Level 5 solution using ContactsContract API you could slightly modify the code above with the following:

  Intent intent = new Intent(Intent.ACTION_PICK);
  intent.setType(ContactsContract.Contacts.CONTENT_TYPE);
  startActivityForResult(intent, PICK_CONTACT);

And then in onActivityResult use the column name:

  ContactsContract.Contacts.DISPLAY_NAME
Naturalize answered 26/4, 2010 at 17:15 Comment(2)
what is there for displaying contact phone numbers?Buckle
There are no such classes in Android 1.6. I've found similar names in Contacts.ContactMethods but I've got only exceptions (can't found such activity). But Reto's code works fineMescal
I
8

Here is the code snippet for get contact:

package com.contact;

import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class GetContactDemoActivity extends Activity implements OnClickListener {

private Button btn = null;
private TextView txt = null;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    btn = (Button) findViewById(R.id.button1);
    txt = (TextView) findViewById(R.id.textView1);

    btn.setOnClickListener(this);
}

@Override
public void onClick(View arg0) {
    if (arg0 == btn) {
        try {
            Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
            startActivityForResult(intent, 1);
        } catch (Exception e) {
            e.printStackTrace();
            Log.e("Error in intent : ", e.toString());
        }
    }
}

@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
    super.onActivityResult(reqCode, resultCode, data);

    try {
        if (resultCode == Activity.RESULT_OK) {
            Uri contactData = data.getData();
            Cursor cur = managedQuery(contactData, null, null, null, null);
            ContentResolver contect_resolver = getContentResolver();

            if (cur.moveToFirst()) {
                String id = cur.getString(cur.getColumnIndexOrThrow(ContactsContract.Contacts._ID));
                String name = "";
                String no = "";

                Cursor phoneCur = contect_resolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[] { id }, null);

                if (phoneCur.moveToFirst()) {
                    name = phoneCur.getString(phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
                    no = phoneCur.getString(phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                }

                Log.e("Phone no & name :***: ", name + " : " + no);
                txt.append(name + " : " + no + "\n");

                id = null;
                name = null;
                no = null;
                phoneCur = null;
            }
            contect_resolver = null;
            cur = null;
            //                      populateContacts();
        }
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
        Log.e("IllegalArgumentException :: ", e.toString());
    } catch (Exception e) {
        e.printStackTrace();
        Log.e("Error :: ", e.toString());
    }
}

}

Intervention answered 26/8, 2011 at 6:0 Comment(0)
S
6
        Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
        while (phones.moveToNext())
        {
        String Name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)
        String Number=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

        }
Schnapp answered 1/9, 2012 at 11:41 Comment(0)
S
5

The complete code is given below

    package com.testingContect;

    import android.app.Activity;
    import android.content.Intent;
    import android.database.Cursor;
    import android.net.Uri;
    import android.os.Bundle;
    import android.provider.ContactsContract;
    import android.provider.Contacts.People;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    import android.widget.EditText;
    import android.widget.Toast;

    public class testingContect extends Activity implements OnClickListener{
    /** Called when the activity is first created. */

    EditText ed;
    Button bt;
    int PICK_CONTACT;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        bt=(Button)findViewById(R.id.button1);
        ed =(EditText)findViewById(R.id.editText1);
        ed.setOnClickListener(this);
        bt.setOnClickListener(this);


    }

    @Override
    public void onClick(View v) {

        switch(v.getId())
        {
        case R.id.button1:

            break;
        case R.id.editText1:
             Intent intent = new Intent(Intent.ACTION_PICK);
              intent.setType(ContactsContract.Contacts.CONTENT_TYPE);
              startActivityForResult(intent, PICK_CONTACT);


            break;

        }

    }
    public void onActivityResult(int requestCode, int resultCode, Intent intent) 
    {

      if (requestCode == PICK_CONTACT)
      {         
          Cursor cursor =  managedQuery(intent.getData(), null, null, null, null);
          cursor.moveToNext();
          String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
           String  name = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME)); 

          Toast.makeText(this, "Contect LIST  =  "+name, Toast.LENGTH_LONG).show(); 
      }
    }//onActivityResult
}//class ends
Stereophonic answered 3/3, 2011 at 10:55 Comment(2)
Where is PICK_CONTACT initialized?Colquitt
It's to be declared at the top of the activity class : private static final int PICK_CONTACT = 1;.Unbounded
C
5
public void onActivityResult(int requestCode, int resultCode, Intent intent) 
{
  if (requestCode == PICK_CONTACT && intent != null) //here check whether intent is null R not
  {  
  }
}

because without selecting any contact it will give an exception. so better to check this condition.

Clamber answered 12/7, 2011 at 7:4 Comment(0)
A
3

To my surprise, you do not need users-permission CONTACT_READ to read the names and some basic information (Is the contact starred, what was the last calling time). However, you do need permission to read the details of the contact like the phone number.

Assimilation answered 26/11, 2011 at 4:10 Comment(0)
Z
3

Be careful while working with the android contact list.

Reading the contact list in the above methods works on most android devices except HTC One and Sony Xperia. It wasted my six weeks trying to figure out what is wrong!

Most tutorials available online are almost similar - first read "ALL" contacts, then show in Listview with ArrayAdapter. This is not memory efficient solution. Instead of looking for solutions on other websites first, have a look at developer.android.com. If any solution is not available on developer.android.com you should look somewhere else.

The solution is to use CursorAdapter instead of ArrayAdapter for retrieving the contact list. Using ArrayAdapter would work on most devices, but it's not efficient. The CursorAdapter retrieves only a portion of the contact list at run time while the ListView is being scrolled.

public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    ...
    // Gets the ListView from the View list of the parent activity
    mContactsList =
        (ListView) getActivity().findViewById(R.layout.contact_list_view);
    // Gets a CursorAdapter
    mCursorAdapter = new SimpleCursorAdapter(
            getActivity(),
            R.layout.contact_list_item,
            null,
            FROM_COLUMNS, TO_IDS,
            0);
    // Sets the adapter for the ListView
    mContactsList.setAdapter(mCursorAdapter);
}

Retrieving a List of Contacts: Retrieving a List of Contacts

Zilla answered 12/5, 2015 at 6:50 Comment(0)
E
1

I have a code to save the contact in your database by shared preference here is my code

public class MainActivity extends AppCompatActivity {
    EditText nameInput,phoneInput;
    TextView LargeText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main22);
        nameInput = (EditText) findViewById(R.id.nameInput);
        phoneInput = (EditText) findViewById(R.id.phoneInput);

        LargeText = (TextView) findViewById(R.id.textView2);
    }

    public void saveInfo (View view){
        SharedPreferences sharedPref = getSharedPreferences("nameInfo" , Context.MODE_PRIVATE);
        SharedPreferences.Editor editor= sharedPref.edit();
        editor.putString("name", nameInput.getText().toString());
        editor.putString("phone", phoneInput.getText().toString());
        editor.apply();
        Toast.makeText(this, "Saved", Toast.LENGTH_LONG).show();
    }

    public void displayData(View view){
        SharedPreferences sharedPref = getSharedPreferences("nameInfo" , Context.MODE_PRIVATE);
        String name = sharedPref.getString("name", "");
        String ph = sharedPref.getString ("phone","");
        LargeText.setText(name + " " + ph);
    }
}
Enthetic answered 24/2, 2016 at 6:52 Comment(0)
S
1

I am using this method to read Contacts

public static List<ContactItem> readPhoneContacts(Context context) {
        List<ContactItem> contactItems = new ArrayList<ContactItem>();
        try {
            Cursor cursor = context.getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null,
                    null, null, "upper("+ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + ") ASC");

            /*context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    null,
                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID+ " = ?",
                    new String[] { id },
                    ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+" ASC");*/

            Integer contactsCount = cursor.getCount(); // get how many contacts you have in your contacts list
            if (contactsCount > 0) {
                while (cursor.moveToNext()) {

                    String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
                    String contactName = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                    if (Integer.parseInt(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
                        ContactItem contactItem = new ContactItem();
                        contactItem.setContactName(contactName);
                        //the below cursor will give you details for multiple contacts
                        Cursor pCursor = context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                                ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                                new String[]{id}, null);
                        // continue till this cursor reaches to all phone numbers which are associated with a contact in the contact list
                        while (pCursor.moveToNext()) {
                            int phoneType = pCursor.getInt(pCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE));
                            //String isStarred      = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.STARRED));
                            String phoneNo = pCursor.getString(pCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                            //you will get all phone numbers according to it's type as below switch case.
                            //Logs.e will print the phone number along with the name in DDMS. you can use these details where ever you want.
                            switch (phoneType) {
                                case Phone.TYPE_MOBILE:
                                    contactItem.setContactNumberMobile(phoneNo);
                                    Log.e(contactName + ": TYPE_MOBILE", " " + phoneNo);
                                    break;
                                case ContactsContract.CommonDataKinds.Phone.TYPE_HOME:
                                    contactItem.setContactNumberMobile(phoneNo);
                                    Log.e(contactName + ": TYPE_HOME", " " + phoneNo);
                                    break;
                                case ContactsContract.CommonDataKinds.Phone.TYPE_WORK:
                                    contactItem.setContactNumberMobile(phoneNo);
                                    Log.e(contactName + ": TYPE_WORK", " " + phoneNo);
                                    break;
                                case ContactsContract.CommonDataKinds.Phone.TYPE_WORK_MOBILE:
                                    contactItem.setContactNumberMobile(phoneNo);
                                    Log.e(contactName + ": TYPE_WORK_MOBILE", " " + phoneNo);
                                    break;
                                case Phone.TYPE_OTHER:
                                    contactItem.setContactNumberMobile(phoneNo);
                                    Log.e(contactName + ": TYPE_OTHER", " " + phoneNo);
                                    break;
                                default:
                                    break;
                            }
                        }
                        contactItem.setSelectedAddress(getContactPostalAddress(pCursor));
                        pCursor.close();
                        contactItems.add(contactItem);
                    }

                }
                cursor.close();
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }


        return contactItems;
    }//loadContacts
Shastashastra answered 22/6, 2016 at 9:35 Comment(0)
H
0
-> Add a permission to read contacts data to your application manifest.

<uses-permission android:name="android.permission.READ_CONTACTS"/>

-> Use Intent.Action_Pick in your Activity like below

Intent contactPickerIntent = new Intent(Intent.ACTION_PICK,
                ContactsContract.CommonDataKinds.Phone.CONTENT_URI);
        startActivityForResult(contactPickerIntent, RESULT_PICK_CONTACT);

-> Then Override the onActivityResult()

 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // check whether the result is ok
        if (resultCode == RESULT_OK) {
            // Check for the request code, we might be usign multiple startActivityForReslut
            switch (requestCode) {
            case RESULT_PICK_CONTACT:
               Cursor cursor = null;
        try {
            String phoneNo = null ;
            String name = null;           
            Uri uri = data.getData();            
            cursor = getContentResolver().query(uri, null, null, null, null);
            cursor.moveToFirst();           
            int  phoneIndex =cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
            phoneNo = cursor.getString(phoneIndex); 

            textView2.setText(phoneNo);
        } catch (Exception e) {
            e.printStackTrace();
        }
                break;
            }
        } else {
            Log.e("MainActivity", "Failed to pick contact");
        }
    }

This will work check it out
Hylophagous answered 10/2, 2016 at 11:38 Comment(0)
T
0

I use the code provided by @Colin MacKenzie - III. Thanks a lot!

For someone who are looking for a replacement of 'deprecated' managedQuery:

1st, assuming using v4 support lib:

import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;

2nd:

your_(activity)_class implements LoaderManager.LoaderCallbacks<Cursor>

3rd,

// temporarily store the 'data.getData()' from onActivityResult
private Uri tmp_url;

4th, override callbacks:

@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    // create the loader here!
    CursorLoader cursorLoader = new CursorLoader(this, tmp_url, null, null, null, null);
    return cursorLoader;
}

@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    getContactInfo(cursor); // here it is!
}

@Override
public void onLoaderReset(Loader<Cursor> loader) {
}

5th:

public void initLoader(Uri data){
    // will be used in onCreateLoader callback
    this.tmp_url = data;
    // 'this' is an Activity instance, implementing those callbacks
    this.getSupportLoaderManager().initLoader(0, null, this);
}

6th, the code above, except that I change the signature param from Intent to Cursor:

protected void getContactInfo(Cursor cursor)
{

   // Cursor cursor =  managedQuery(intent.getData(), null, null, null, null);      
   while (cursor.moveToNext()) 
   {
        // same above ...
   } 

7th, call initLoader:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (PICK_CONTACT == requestCode) {
        this.initLoader(data.getData(), this);
    }
}

8th, don't forget this piece of code

    Intent intentContact = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
    this.act.startActivityForResult(intentContact, PICK_CONTACT);

References:

Android Fundamentals: Properly Loading Data

Initializing a Loader in an Activity

Twitt answered 27/2, 2016 at 7:16 Comment(0)

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